There is a common misconception that orthodontics is a rite of passage reserved strictly for middle school hallways. But walk into our orthodontic office in Poplar Bluff, and you’ll notice something surprising: the waiting room isn’t just filled with teenagers.
According to the American Association of Orthodontists, one in three orthodontic patients today is an adult. Whether it’s a parent finally treating themselves after years of prioritizing their kids, or a professional looking to boost their confidence, adults are reclaiming their smiles in record numbers.
However, moving teeth at age 45 is biologically different from moving teeth at age 12. While the result—a healthy, beautiful smile—is the same, the journey to get there varies based on biology, bone density, and growth potential.
Here is the science behind how Dr. Spence and Dr. Burzynski tailor treatment for every stage of life.
Key Takeaways
- Adult Orthodontics is Unique: Moving teeth in adults takes into account factors such as decreased bone density, slower cellular responses, and the absence of ongoing jaw growth.
- Customized Treatment Plans: Dr. Spence and Dr. Burzynski develop personalized approaches based on each patient’s age, biology, and oral health to ensure optimal results.
- Achieving the Same Results: Regardless of age, the goal remains the same—a confident, healthy, and beautiful smile tailored to individual needs.

Is orthodontic treatment different for adults compared to teenagers?
Yes, the fundamental difference lies in skeletal growth. Adult orthodontics focuses on corrective alignment within a matured jawbone, often involving multidisciplinary dental work, while teen treatment leverages active growth spurts to guide jaw development and tooth eruption.
The Power of the “Growth Spurt”
When we treat a teenager, we aren’t just straightening teeth; we are often guiding the growth of their facial structure. This is known as dentofacial orthopedics.
Teenagers go through a pubertal growth spurt—typically occurring between ages 11–12 for girls and 13–14 for boys. During this window, the jaw is growing rapidly in three dimensions. Orthodontists can utilize appliances, like the Forsus™ Appliance or palatal expanders, to “harness” this growth.
For example, if a teen has a severe overbite (a retrognathic mandible), we can use functional appliances to encourage the lower jaw to grow forward, correcting the bite skeletal-ly.
The Adult Approach: Camouflage and Correction
In adults, jaw growth is complete. We cannot stimulate the jaw to grow wider or longer. Therefore, adult treatment is often force-driven rather than growth-driven.
- Surgical Orthodontics: If a skeletal discrepancy is severe in an adult (like a significant underbite), we may partner with an oral surgeon to physically reposition the jaw, as we can no longer guide it into place naturally.
- Multidisciplinary Care: Adults often have a dental history that teens don’t. This includes fillings, crowns, missing teeth, or periodontal (gum) concerns. Dr. Spence often collaborates with your general dentist to ensure that your bone and gums are healthy enough to support tooth movement before we apply a single bracket.
How does bone density affect the speed of orthodontic movement?
Bone density in adults is significantly higher, requiring more precise, consistent force application to achieve tooth movement compared to the more pliable, highly vascularized alveolar bone found in teenagers.
The Biology of Moving a Tooth
Teeth are not fused to the jawbone; they are suspended in a socket by the Periodontal Ligament (PDL). When Invisalign® or braces apply pressure to a tooth, it constricts the blood vessels in the PDL on one side and stretches them on the other.
This stress triggers a cellular response:
- Osteoclasts: These cells break down bone tissue on the pressure side to make room for the tooth to move.
- Osteoblasts: These cells build new bone on the tension side to fill in the space left behind.
Why Age Matters in Cellular Turnover
In adolescents, this metabolic process is rapid. Their bone is less dense and has a richer blood supply, meaning osteoclasts and osteoblasts can work quickly. This is why a teen might see massive changes in just a few months.
In adults, the alveolar bone is denser and less vascular. The cellular response—specifically the recruitment of osteoclasts—is slower. This phenomenon, sometimes related to cell senescence (the slowing down of cell division), means adult treatment plans are often slightly longer to allow the body time to catch up to the mechanics. Rushing this process in adults can lead to root resorption (shortening of the tooth roots), so we prioritize a steady, biologically safe pace.
The Physics of Tooth Movement: Why Some Braces Are Faster Than Others
To understand why we choose specific treatments for adults versus teens, we have to look at the physics of torque and the chemistry of adhesives.
The Mechanics of Torque
Moving a tooth isn’t just about tipping the crown (the part you see). To get a stable result, we often need to move the root, which is encased in bone. This requires torque—a twisting force applied to the bracket.
Every tooth has a “Center of Resistance.” If you push a tooth above this center without applying torque, the tooth will just tip over. To move the tooth bodily (crown and root together), we must apply a counter-moment force.
- For Teens: We often use high-grade nickel-titanium wires that apply a light, continuous force, taking advantage of their softer bone to correct torque issues efficiently.
- For Adults: Because the bone is denser, we may utilize KLOwen digital braces or SmartArch wires that are custom-engineered to apply the exact amount of torque needed for your specific root anatomy, reducing the friction and resistance found in adult bone.
The Chemistry of Bonding
Have you ever wondered how braces stick to your teeth? It relies on resin chemistry.
We use a light-cured adhesive, typically based on a Bis-GMA (bisphenol A-glycidyl methacrylate) resin. This resin penetrates the microscopic pores of the tooth enamel to create a mechanical lock.
- Teen Enamel: Usually “virgin” (untouched by restoration), providing an ideal surface for bonding.
- Adult Enamel: Adults may have porcelain crowns, veneers, or amalgam fillings. Bis-GMA resins do not bond to porcelain the same way they bond to enamel. For our adult patients with restorative work, we use specialized primers (like silane coupling agents) to ensure brackets stay on securely without damaging your existing dental work.
Choosing the Right Tool: Aesthetics vs. Durability
While the biology differs, the desire for a confident smile is universal. However, the tools we use often depend on lifestyle.
For the Working Professional: Invisalign® and Clear Braces
Adults often worry that braces will impact their professional image. This is why Invisalign® is the top choice for our adult patients in Poplar Bluff.
- Discretion: The clear aligners are virtually invisible.
- Hygiene: You can remove them to brush and floss, which is vital for adults who may already be managing gum health.
- Radiance™ Brackets: For adults who need the power of braces but want aesthetics, we offer Radiance brackets. Made from a single crystal of pure sapphire, they are heat-polished to be crystal clear and resist staining.
For the Active Teen: Durability and Style
Teens are often less concerned with discretion and more concerned with customization (and snacking!).
- Metal Braces: The classic choice. They are durable, effective for complex bite issues, and allow teens to show off their personality with colored bands.
- Invisalign® Teen: For the responsible teen, this offers the same benefits as the adult version but includes “compliance indicators”—blue dots that fade to let parents know if the aligners are being worn enough.

Frequently Asked Questions
Q: Does orthodontic treatment hurt more for adults?
A: Pain perception varies, but adults may experience slightly more initial discomfort.
Because adult bone is denser and the inflammatory response (cytokine release) can be more pronounced, the first few days after an adjustment might feel tighter for an adult than a teen. However, modern technology like the iTero Digital Impression System ensures your appliances fit perfectly, minimizing unnecessary irritation.
Q: Am I too old for braces?
A: As long as your gums and bone structure are healthy, you are never too old.
We have successfully treated patients in their 60s, 70s, and beyond. If you have active gum disease, we will work with your dentist to resolve it before starting treatment, but age itself is not a contraindication for a beautiful smile.
Orthodontic Care That Feels Like Family
Whether you are 14 or 54, you deserve a smile that makes you feel confident. While the biology of tooth movement changes as we age, the goal at Innovative Orthodontics remains the same: to provide tech-forward care with a human touch.
From our fresh-baked cookies to our flexible payment plans, we are dedicated to making orthodontics fun (seriously!) for every member of the family.
Ready to see what your new smile could look like? Schedule your free consultation at one of our five convenient Missouri locations today.